JAoin the nut line with the line on head stock,cut the neck out using a knife and straigt edge. stick it to your template timber,cut out with jig saw,sand to perfection,now use that template to make a beter one using a router and patern bit,good luck.
googl STUART MC DONALD FRET CALCULATER for you measurements

this is how i drew my telecaster neck out.
Get some tracing paper and draw a line 475mm long,
Use a square to draw your nut line on the left,42mm,so 21mm each side.
use a square to draw the end of the neck 58mm so 29mm each side
Now join the edge lines.
You can now choose your head stock from this site http://www.gitarrebassbau.de/viewtopic.php?f=10&t=6

Hello! I am on my way to build a precision bass but I don't have a blueprint. Tried to open the link on the side but it don't works. I have a precision fro, 1964 to copy from but it would have been nice to have a blueprint. Maybe you can help me! Thanks a lot if you can. /kent.lofstedt@musicland.se